Pen.



W. J. BLAGK.

PEN.

APPLICATION FILED APR.- 7. 1913.

1,096,990. Patented May 19, 1914.

WITNESSES INVENTOR COLUMBIA PLANOGIAIH cnqwulllNflro UNITED STATES PATENT OFFICE.

WILLIAM J. BLACK, OF PITTSBURGH, PENNSYLVANIA.

Specification of Letters Patent. Application filed April 7, 1913.

Patented May 19, 1914. Serial No. 759,269.

To all whom it may concern Be it known that I, WVILLIAM J. BLAoK, a citizen of the United States, and residing in the city of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented or discovered new and useful Imrovements in Pens, of which the following is a specification.

My invention consists of a new and improved reservoir or dammed pen.

The objects in view are to facilitate writing by enabling the writer to take up enough ink at one dipping of the pen to write a number of pages of manuscript; to provide a continuous supply of ink so that uniform hair or shaded lines may be produced; to permit the proper spread of the nibs to form the desired line or shading; to support and protect the pen nibs from breaking or bending, and to prevent blotting, splattering, or leakage of ink from the reservoir when the pen is not in use or is handed from one person to the other. For these purposes my pen is provided with a reservoir to contain a supply of ink which is filled at intervals by dipping the pen into an ink well or bottle, and from which the ink is fed through a slot in the pen to the upper surface thereof against a dam which feeds the ink down the nibs to the writing surface. The reservoir is formed of a transversely curved plate attached to the under side of the pen, closely fitting against the pen along its lateral edges and at its lower end, an opening or openings being provided at its upper end for the entrance of the ink supply. The lower end of said plate is provided with an integral, upturned loop through which the nibs of the pen are thrust, said nibs fitting with sufficient lateral looseness in said loop to permit of their spreading laterally to form a line of the desired breadth regulated by the pressure exerted on the pen by the writer.

Other novel features and arrangements of parts will appear from the following description.

In the accompanying drawings, Figure 1 is a perspective view of a pen holder having mounted therein one of my pens; Fig. 2 is an enlarged plan view of my improved pen; F 3 is an inverted plan view of the same, and Fig. 4 is a longitudinal section along the line IVIV in Fig. 2.

The following is a detailed description of the drawings.

A is a pen holder.

B is an ordinary pen of steel or other metal. For the sake of illustration I have shown my invention applied to a stub pen but it will be understood that it may equally well be applied to any character of pen.

C is a transversely curved plate which fits into the concaved face of pen B, its lateral edges making a close joint with the pen to prevent the escape of the ink. The plate C may be conveniently held in position by means of its integral ears 1 carried at opposite points on the longitudinal edges thcrcof, and extending through the slots 2 in the pen and upset to prevent their withdrawal. The upper or rear end of plate C is provided with a relatively narrow axial tongue 3 which is bent upwardly or inwardly to contact with the pen B. Said tongue may pass through a slot 4 in the pen and be upset, as shown. I thus form a pair of ports 5 at either side of the tongue 3 for the entrance of ink into the reservoir when the pen is dipped into the ink. The lower or front end of plate C is bent inwardly, as at 6, into snug fit and contact with the pen 13, thus closing the lower end of the reservoir against the escape of ink between said plate and the pen.

7 is an upturned loop, integral with plate C, which extends over the nibs 8 of the pen, permitting suflicient lateral play in said nibs to permit them to spread to vary the width of the written line from a fine hair line to a wide shaded line.

9 represents the triangular slot usually provided in the pen at the head of the nibs slot 10.

The ink from the reservoir, when the pen is being used for writing, feeds through the slot 9, or in case no such slot 9 is provided, through the slot 10 above the dam 7, and flows down against said dam when it feeds down the nibs to the writing surface. If but little pressure is put on the pen by the writer. the nibs will be slightly spread if at all and the quantity of ink fed to the writing surface will be small and the line made on the paper light, while added pressure will increase the spread of the ink and make a heavier line.

The advantages of my improved pen are very numerous. Among them may be cited the following. The ink has an easy, uninterrupted flow to the writing surface and any desired lightness of line or shading may be produced by varying the pressure eX- erted on the pen. The flow of ink is at all times proportioned to such pressure, and several pages of manuscript may be written without replenishing the reservoir by clipping the pen into a supply of ink. This insures a uniformity of writing that cannot be obtained in the use of an ordinary steel pen which must be redipped in the ink after every few words written. The nibs spread easily in response to pressure but are at the same time protected from bending or breaking off by the dam, sustaining safely, when desired, a greater pressure than would be possible were the nibs not so protected. No splattering or blotting is possible as the flow of ink to the writing surface is always under perfect control. When the pen is laid down or handed from one person to another, no leaking, dripping or blotting occurs. This is due to the fact that the reservoir formed by the plate C and the pen is closed to the escape of ink except through slots 9 and 10. The dam 7 extends upwardly to a sufficient degree to prevent the ink flowing down over the same but the ink is held back by said dam and compelled to pass down the nibs through slot 10. The presence of the dam, supporting the nibs prolongs the life of the pen from one to three hundred per cent. By the provision of the tongue 3 and the ears 1, 1 carried by the reservoir C, the longitudinal edges of the latter are brought into close engagement with the under surface of the pen B, thus insuring that there shall be no escape of ink from said reservoir, at the longitudinal edges thereof. Also, by the provision of said tongue 3 and the ears 1, 1, the reservoir is held firmly against accidental displacement, which is an important desideratum.

What I desire to claim is 1. The combination, with a pen, provided with three perforations, of an elongated plate disposed on the under surface thereof and forming a reservoir between said plate copies of this patent may be obtained for end thereof, with a 'voir between said plate and pen,

being provided, at one loop embracing the ear terior surface of the pen-nibs, and being and pen, said plate :provided, at the other end, with a tongue projecting through one of said pen-apertures and bent over into engagement with the exterior surface of the pen, said plate being also provided, at its longitudinal edges, with two, oppositely-disposed ears projecting through the remaining two penapertures and bent over into engagement with the exterior surface of the pen, whereby the longitudinal edges of the plate are brought, by said tongue and ears, into engagement with the under surface of the pen, preventing escape of ink from said reservoir, at said longitudinal edges of the plate.

2. The combination, with a pen, provided with three perforations, of an elongated, transversely-curved plate disposed on the under surface thereof and forming a resersaid plate being provided, at one end thereof, with a loop embracing the exterior surface'of the pen-nibs, and being provided, at the other end, with a tongue projecting through one of said pen-apertures and bent over into engagement with the exterior surface of the pen, said plate being also'provided', at its longitudinal edges, with two, oppositelydisposed ears projecting through the remaining two pen-apertures and bent over into engagement with the exterior surface of the pen, whereby the longitudinal edges of the plate are brought, by said tongue and ears, into engagement with the under surface of the pen, preventing escape ofink from said reservoir, at said longitudinal edges of the plate.

Signed at Pittsburgh, Penna, this 4th.

day of April, 1913. p

I WILLIAM J. BLACK. Witnesses E. A. LAWRENCE, H. H. BLACK.

five cents each, by addressing the Commissioner of Patents.

Washington, D. c. 

